Operator's manual [PDF] (8 pages)
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OPERATOR’S MANUAL
1604619
INCLUDING: OPERATION, INSTALLATION & MAINTENANCE
RELEASED:
11-1-13
REVISED: 3-03-14
(REV. B)
1/4" DIAPHRAGM PUMP
1:1 RATIO (NON-METALLIC)
1604628
READ THIS MANUAL CAREFULLY BEFORE INSTALLING,
OPERATING OR SERVICING THIS EQUIPMENT.
It is the responsibility of the employer to place this information in the hands of the operator. Keep for future reference.
Industrial Coatings Customer Support
555 Jackson Street - Amherst, OH 44001
(800) 433-9319 www.nordson.com
Figure 1
SERVICE KITS
1604580 for Air Section repair (see page 6).
1604582 for Diaphragm repair (see page 4).
1604581 for Ball And Seat repair (see page 4).
PUMP DATA
Model . . . . . . . 1604628
Pump Type. . . Non-Metallic Air Operated Double Diaphragm
Material . . . . . see Model Description Chart.
Weight. . . . . . . Acetal . . . . . . . . . . . . . . 3.52 lbs (1.60 kgs)
Maximum Air Inlet Pressure. . . . . . . . 125 psig (8.6 bar)
Minimum Air Inlet Pressure . . . . . . . . 10 psig (0.69 bar)
Maximum Material Inlet Pressure. . . 10 psig (0.69 bar)
Maximum Outlet Pressure. . . . . . . . . . 125 psig (8.6 bar)
Maximum Flow Rate (flooded inlet). . . . . . 5.3 gpm (20 lpm)
Displacement / Cycle @ 125 p.s.i.g. . 0.019 gal / 0.072 ltrs
Maximum Particle Size . . . . . . . . . . . . . 1/16” dia.(1.6 mm)
Maximum Temperature Limits (diaphragm / ball / seat material)
Acetal. . . . . . . . . . . . . . . . . . . . 10° to 180° F (-12° to 82° C)
E.P.R. / EPDM. . . . . . . . . . . . . . -60° to 280° F (-51° to 138° C)
Kynar® PVDF. . . . . . . . . . . . . . 10° to 200° F (-12° to 93° C)
Hytrel® . . . . . . . . . . . . . . . . . . . -20° to 150° F (-29° to 66° C)
Neoprene. . . . . . . . . . . . . . . . 0° to 200° F (-18° to 93° C)
Nitrile® . . . . . . . . . . . . . . . . . . . 10° to 180° F (-12° to 82° C)
Polypropylene. . . . . . . . . . . . 35° to 175° F (2° to 79° C)
Viton®. . . . . . . . . . . . . . . . . . . . -40° to 350° F (-40° to 177° C)
Santoprene®. . . . . . . . . . . . . . -40° to 225° F (-40° to 107° C)
PTFE. . . . . . . . . . . . . . . . . . . . . . 40° to 225° F (4° to 107° C)
Dimensional Data. . . . . . . . . . . . . . . . . . . see page 7
Noise Level @ 70 p.s.i., 60 c.p.m.. . . . . . 62.3 db(A)
The pump sound pressure levels published here have been updated to
an Equivalent Continuous Sound Level (LAeq) to meet the intent of ANSI
S1.13-2005, CAGI-PNEUROP S5.1.
CCN 47509597001
MODEL DESCRIPTION
1604628-Groundable Acetal, NPTF / BSPT / Hydrid Threaded
ports
Page 2 of 8
1604619-EN
WARNING EXCESSIVE AIR PRESSURE. Can cause per-
sonal injury, pump damage or property damage.
yy Do not exceed the maximum inlet air pressure as
stated on the pump model plate.
yy Be sure material hoses and other components are able
to withstand fluid pressures developed by this pump.
Check all hoses for damage or wear. Be certain dispens-
ing device is clean and in proper working condition.
WARNING STATIC SPARK. Can cause explosion
resulting in severe injury or death. Ground pump and
pumping system.
yy 1604628 is Groundable Acetal pump: Use the pump
ground lug provided. Connect to a 12 ga. (minimum)
wire (kit 1604591 is included) to a good earth ground
source.
yy Sparks can ignite flammable material and vapors.
yy The pumping system and object being sprayed must be
grounded when it is pumping, flushing, recirculating or
spraying flammable materials such as paints, solvents,
lacquers, etc. or used in a location where surrounding
atmosphere is conducive to spontaneous combustion.
Ground the dispensing valve or device, containers, hos-
es and any object to which material is being pumped.
yy Secure pump, connections and all contact points to
avoid vibration and generation of contact or static spark.
yy Consult local building codes and electrical codes for
specific grounding requirements.
yy After grounding, periodically verify continuity of
electrical path to ground. Test with an ohmmeter
from each component (e.g., hoses, pump, clamps,
container, spray gun, etc.) to ground to insure conti-
nuity. Ohmmeter should show 0.1 ohms or less.
yy Submerse the outlet hose end, dispensing valve or
device in the material being dispensed if possible.
(Avoid free streaming of material being dispensed.)
yy Use hoses incorporating a static wire.
yy Use proper ventilation.
yy Keep inflammables away from heat, open flames and
sparks.
yy Keep containers closed when not in use.
WARNING Pump exhaust may contain contaminants.
Can cause severe injury. Pipe exhaust away from work
area and personnel.
yy In the event of a diaphragm rupture, material can be
forced out of the air exhaust muffler.
yy Pipe the exhaust to a safe remote location when
pumping hazardous or inflammable materials.
yy Use a grounded 1/4” minimum i.d. hose between the
pump and the muffler.
WARNING HAZARDOUS PRESSURE. Can result in
serious injury or property damage. Do not service
or clean pump, hoses or dispensing valve while the
system is pressurized.
yy Disconnect air supply line and relieve pressure from
the system by opening dispensing valve or device
and / or carefully and slowly loosening and removing
outlet hose or piping from pump.
WARNING HAZARDOUS MATERIALS. Can cause
serious injury or property damage. Do not attempt
to return a pump to the factory or service center that
contains hazardous material.
Safe handling practices must comply with local and
national laws and safety code requirements.
yy Obtain Material Safety Data Sheets on all materials
from the supplier for proper handling instructions.
CAUTION Verify the chemical compatibility of the
pump wetted parts and the substance being pumped,
flushed or recirculated. Chemical compatibility may
change with temperature and concentration of the
chemical(s) within the substances being pumped,
flushed or circulated. For specific fluid compatibility,
consult the chemical manufacturer.
CAUTION Maximum temperatures are based
on mechanical stress only. Certain chemicals will
significantly reduce maximum safe operating
temperature. Consult the chemical manufacturer for
chemical compatibility and temperature limits. Refer
to PUMP DATA on page 1 of this manual.
CAUTION Be certain all operators of this equipment
have been trained for safe working practices,
understand it’s limitations, and wear safety goggles /
equipment when required.
CAUTION Do not use the pump for the structural
support of the piping system. Be certain the system
components are properly supported to prevent stress
on the pump parts.
yy Suction and discharge connections should be flex-
ible connections (such as hose), not rigid piped,
and should be compatible with the substance being
pumped.
CAUTION Prevent unnecessary damage to the
pump. Do not allow pump to operate when out of
material for long periods of time.
yy Disconnect air line from pump when system sits idle
for long periods of time.
CAUTION Use only genuine NORDSON replacement
parts to assure compatible pressure rating and longest
service life.
NOTICE
Install the pump in the vertical position. The
pump may not prime properly if the balls do not check by
gravity upon start-up.
NOTICE
RE-TORQUE ALL FASTENERS BEFORE
OPERATION. Creep of housing and gasket materials may
cause fasteners to loosen. Re-torque all fasteners to insure
against fluid or air leakage.
NOTICE
Replacement warning labels are available
upon request.
WARNING
= Hazards or unsafe practices which
could result in severe personal injury,
death or substantial property damage.
CAUTION
= Hazards or unsafe practices which
could result in minor personal injury,
product or property damage.
NOTICE
= Important installation, operation or
maintenance information.
OPERATING AND SAFETY PRECAUTIONS
READ, UNDERSTAND, AND FOLLOW THIS INFORMATION TO AVOID INJURY AND PROPERTY DAMAGE.
EXCESSIVE AIR PRESSURE
STATIC SPARK
HAZARDOUS MATERIALS
HAZARDOUS PRESSURE
1604619-EN
Page 3 of 8
Kynar® is a registered trademark of the Arkema Inc. Loctite® and 242 are registered trademarks of the Henkel Loctite Corporation
Santoprene® is a registered trademark of Monsanto Company, licensed to Advanced Elastomer Systems, L.P.
Lubriplate® is a registered trademark of Lubriplate Division (Fiske Brothers Refining Company)
OPERATING INSTRUCTIONS
yy Always flush the pump with a solvent compatible with
the material being pumped if the material being pumped
is subject to “setting up” when not in use for a period of
time.
yy Disconnect the air supply from the pump if it is to be in-
active for a few hours.
yy The outlet material volume is governed not only by the
air supply, but also by the material supply available at
the inlet. The material supply tubing should not be too
small or restrictive. Be sure not to use hose which might
collapse.
MAINTENANCE
yy This product is not intended to be repairable. However,
some service items are available.
yy Provide a clean work surface to protect sensitive internal
moving parts from contamination from dirt and foreign
matter during service disassembly and reassembly.
yy Keep good records of service activity and include the
pump in preventive maintenance program.
yy At the end of its service life, please dispose of pump and
contents properly.
GENERAL DESCRIPTION
The NORDSON diaphragm pump offers high volume delivery
even at low air pressures, easy self priming and the ability to
pump various viscosity materials. The pump is designed to
correspond to the needs of the user by offering a variety of
wetted parts configurations to handle almost any applica-
tion.
Air operated double diaphragm pumps utilize a pressure
differential in the air chambers to alternately create suction
and positive fluid pressure in the fluid chambers. Flat checks
insure a positive flow of fluid.
Pump cycling will begin as air pressure is applied and it will
continue to pump and keep up with the demand. It will build
and maintain line pressure and will stop cycling once maxi-
mum line pressure is reached (dispensing device closed) and
will resume pumping as needed.
The Acetal material used in this pump contains stainless steel
fibers. It’s conductivity allows it to be connected to a suitable
ground. A ground screw is provided for this.
AIR AND LUBE REQUIREMENTS
WARNING EXCESSIVE AIR PRESSURE. Can cause pump
damage, personal injury or property damage.
yy
A filter capable of filtering out particles larger than 50
microns should be used on the air supply. In most ap-
plications there is no lubrication required other than the
“O” ring lubricant which is applied during assembly or repair.
yy The pump, when fitted with flex checks, can be rotated
360° to suit the application. It may be mounted upside
down or on the wall with no effect on suction lift or op-
erating efficiency. The filter and regulator need to be ori-
ented in a normal vertical direction to function properly.
yy If lubricated air is present, make sure that it is compatible
with the “O” rings and seals in the air motor section of the
pump.
INSTALLATION
yy Apply PTFE tape or pipe sealant to threads upon assem-
bly to prevent leakage.
yy Secure the diaphragm pump legs to a suitable surface to
insure against damage by vibration.
yy When the diaphragm pump is used in a forced-feed
(flooded inlet) situation, it is recommended that a “Check
Valve” be installed at the air inlet.
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